Analysis of Combustion and Systematic Performance of  MCFC/MGT Hybrid System

Abstract

Abstract:

The reaction performance and influencing factors of catalytic combustor in the molten carbonate fuel cell/micro-gas turbine (MCFC/MGT) hybrid system were studied, and a hybrid system was designed based on the commercial gas turbine. The combination of numerical simulation and experimental study was used to study the catalytic combustor. The plug flow reactor model and detailed reaction mechanism of CH4 on Pt were used for the numerical simulation, and reaction performances of 3 different catalysts were studied in the experimental study. The design point parameters of the hybrid system were identified based on the commercial gas turbine, using the fuel cell temperature as the limiting condition. The results show that the model created can reflect the characteristics of the catalytic combustion burner, the reaction activity of the perovskite and metal oxide catalyst is poorer than the noble metal catalyst. Though the efficiency of the system based on the commercial gas turbine is lower, this design is more practical.

Key words: hybrid power system, micro-gas turbine, catalytic combustion, fuel cell

CLC Number:

TM 911

LIU Aiguo1,WENG Yiwu2,ZENG Wen1,WANG Bing1. Analysis of Combustion and Systematic Performance of MCFC/MGT Hybrid System[J]. Journal of Shanghai Jiaotong University, 2013, 47(12): 1957-1962.

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Analysis of Combustion and Systematic Performance of MCFC/MGT Hybrid System

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